Bolt fob stobe-shtjttees



UNITED sfr WM. C. FISHER, OF CHARLESTOWN, MASSACHUSETTS.

BOLT FOR STORE-SHUTTERS.

Specification of Letters Patent No. 28,844, dated June 26, 1860.

To all whom it may concern:

Be it known that I, IVM. C. FISHER, of Charlestown, in the county of Middlesex and State of Massachusetts, have invented an Improved Bolt for Securing Store-Shutters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a .view of a store shutter showing the manner in which my improved bolt is applied; Fig. 2, a view of the bolt; Fig. 3, a section through the bolt, window frame and shutter.

It is customary to secure the show windows of stores with shutters formed in sections and held in place by an iron bar A, Fig. l, extending across them, one end of the bar being secured by a hook and staple as at a and the other end by a bolt which passes through the bar, the shutter, and the window frame where it is fastened on the inside by a key passing through the bolt.

My present invention consists in an improved spring bolt for this purpose which is inserted in the usual manner but secures itself when it is pushed into place.

That others skilled in the art may understand and use my invention I will proceed to describe the manner in which I have carried out the same.

In the said drawings A, is the bar; B, the shutter; C, the window frame; D, Figs. l and 2, the bolt which has a solid part or body c of a wedge shape, a head b, and a spring e attached to each of two sides of the body c. The outer end of each spring e terminates in a knob or button f, having a shoulder 5, on it. A striker or plate g, is attached to the inner side of the window frame as shown in Fig. 2. The bolt passes through a hole in this striker and when in place the buttons f spring out on each side so that the shoulders 5, rest on the striker g and prevent the bolt from being withdrawn. When it is required to withdraw the bolt the buttons f are pressed toward each other until they will pass through the hole in the striker when the bolt may be pushed out from the inside of the window.

The bolt here represented is made to fit a square hole inthe shutter, window frame and strikenbut any other convenient form may be employed.

In some cases a spring e may be applied to one side only of the bolt, but I prefer the form here shown.

This bolt possesses many advantages over the old fashioned bolt and key; it saves time in fastening up as it is only necessary to push the bolt home into its place when it will be secured, and the danger is avoided of forgetting to insert the key.

Vhat I claim as my invention and desire to secure by Letters Patent is- As a new article of manufacture, the above described bolt for securing store win- (flow shutters, operating substantially as set orth.

WM. o. FISHER.

Witnesses P. E. TESCHEMACHER, Trios. R. RoAcH. 

